Medical device for modification of left atrial appendage and related systems and methods
First Claim
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1. A method for modifying a left atrial appendage of a heart, the method comprising:
- advancing a medical device with a catheter of a delivery system through a vasculature to the left atrial appendage of the heart in a constricted position, the medical device including a framework extending between a primary hub and a secondary hub each having a common axis;
deploying the medical device adjacent the left atrial appendage to a deployed position such that, in the deployed position, the framework extends radially outward from the primary hub to extend radially toward a distal side of the framework such that, at the distal side, the framework extends radially inward to the distal end of the framework and then turns proximally and radially inward toward the secondary hub, the secondary hub remaining proximal the distal end of the framework;
securing the medical device to tissue in the left atrial appendage with tissue anchors positioned on and extending from the framework proximal the distal end of the framework; and
releasing the catheter from the medical device to permanently leave the medical device in the left atrial appendage.
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Abstract
Devices, methods and systems are provided for occluding an opening within the tissue of a body, such as a left atrial appendage. In one embodiment, a medical device includes an occluder portion and an anchor portion, the anchor portion hingably coupled to the occluder portion. With this arrangement, the anchor portion actuates and pivots relative to the occluder portion between an anchor deployed position and an anchor non-deployed position while the occluder portion is in an occluder deployed position.
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Citations
20 Claims
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1. A method for modifying a left atrial appendage of a heart, the method comprising:
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advancing a medical device with a catheter of a delivery system through a vasculature to the left atrial appendage of the heart in a constricted position, the medical device including a framework extending between a primary hub and a secondary hub each having a common axis; deploying the medical device adjacent the left atrial appendage to a deployed position such that, in the deployed position, the framework extends radially outward from the primary hub to extend radially toward a distal side of the framework such that, at the distal side, the framework extends radially inward to the distal end of the framework and then turns proximally and radially inward toward the secondary hub, the secondary hub remaining proximal the distal end of the framework; securing the medical device to tissue in the left atrial appendage with tissue anchors positioned on and extending from the framework proximal the distal end of the framework; and releasing the catheter from the medical device to permanently leave the medical device in the left atrial appendage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for modifying a left atrial appendage of a heart, the method comprising:
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advancing a medical device through a vasculature with a catheter to the left atrial appendage of the heart, the medical device having a framework extending between a primary hub and a secondary hub each having a common axis; deploying the medical device in the left atrial appendage from a constricted position to a deployed position such that the secondary hub moves along the axis relative to the primary hub and such that, in the deployed position, the framework extends radially outward from the primary hub to extend radially toward a distal side of the framework such that, at the distal side, the framework extends radially inward to a distal end of the framework to then continue to extend radially inward and proximally toward the secondary hub such that the secondary hub remains proximal the distal end of the framework; securing the medical device to tissue in the left atrial appendage with tissue anchors positioned on and extending from the framework proximal the distal end of the framework; and withdrawing the catheter from the left atrial appendage and the vasculature with the medical device remaining secured to the tissue in the left atrial appendage of the heart. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification